This JL Audio 92145 6W3v3-4 6" Poly Subwoofer is a high-quality car subwoofer that provides a powerful and clear sound. It has a RMS power of 150W and a 4 Ohm impedance, making it a great choice for car audio enthusiasts who want to enhance their music listening experience. The speaker size is 6in. and the model number is 92145.This subwoofer is designed to provide a premium sound experience for car audio systems. It is made from high-quality materials and is built to last, ensuring that you get the most out of your investment. Whether you're a music lover or a car audio enthusiast, this JL Audio 92145 subwoofer is a great choice for anyone who wants to upgrade their car audio system.